期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 69, 期 2, 页码 1465-1476出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2021.3060657
关键词
Inverters; Modulation; Zero voltage switching; Snubbers; Inductance; Topology; Capacitors; DC-AC power converters; energy storage; power supplies; pulsewidth modulation inverters; soft switching; zero current switching (ZCS); zero voltage switching (ZVS)
资金
- European Economic Area (EEA) and Norway Financial Mechanism 2014-2021 [EMP474]
- Estonian Research Council [PRG1086]
- Estonian Centre of Excellence in Zero Energy and Resource Efficient Smart Buildings and Districts - European Regional Development Fund [2014-2020.4.01.15-0016]
This article presents a high gain pure sine-wave inverter based on the full-bridge dc-ac high-frequency link cycloconverter topology for telecom or general-purpose applications. The improved quasi-resonant modulation method allows reduction of ringing and turn-off losses of the dc-side switches. This is achieved with minimal energy circulation and requires no multi-mode operation or extra auxiliary clamping circuits. The soft switching can be provided even if relatively large lossless snubber capacitors are connected across the input side transistors. Moreover, two of the switches at the ac side operate at the fundamental frequency, while the rest feature zero current turn-off.
This article presents a high gain pure sine- wave inverter based on the full-bridge dc-ac high-frequency link cycloconverter topology for telecom or general-purpose applications. The improved quasi-resonant modulation method allows reduction of ringing and turn-off losses of the dc-side switches. This is achieved with minimal energy circulation and requires no multi-mode operation or extra auxiliary clamping circuits. The soft switching can be provided even if relatively large lossless snubber capacitors are connected across the input side transistors. Moreover, two of the switches at the ac side operate at fundamental frequency, while the rest feature zero current turn-off. A 48 V-DC to 230 V-AC, 1.2 kW sine-wave inverter prototype was developed to verify the proposed concept.
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